标签：back virt mil notify style def val http rac
IP说明:
master机器(master-node):10.0.0.5/172.16.1.5 VIP1:10.0.0.3
slave机器(slave-node): 10.0.0.6/172.16.1.6 VIP2:10.0.0.4
注意事项:
双主配置:MASTER-BACKUP和BACKUP-MASTER;
如果是三主,就是MATER-BACKUP-BACKUP、BACKUP-MASTER-BACKUP和BACKUP-BACKUP-MASTER;
配置中的虚拟路由标识virtual_router_id在MASTER和BACKUP处配置不能一样,但在主从模式下配置是一样的.
1.master上的keepalived配置
global_defs {
notification_email {
174646513@qq.com
}
notification_email_from 17461651@qq.com
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id lb01
}
vrrp_script chk_http_port {
script "/service/scripts/chk_nginx.sh"
interval 2
weight -5
fall 2
rise 1
}
vrrp_instance VI_1 {
state MASTER
interface eth0
mcast_src_ip 10.0.0.5
virtual_router_id 51
priority 101
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.3
}
track_script {
chk_http_port
}
notify_master "/etc/keepalived/clean_arp.sh 10.0.0.3"
}
vrrp_instance VI_2 {
state BACKUP
interface eth0
mcast_src_ip 10.0.0.6
virtual_router_id 52
priority 99
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.4
}
track_script {
chk_http_port
}
notify_master "/etc/keepalived/clean_arp.sh 10.0.0.4"
}
2.更新vip的arp记录到网关的脚本
cat /etc/keepalived/clean_arp.sh #!/bin/sh VIP=$1 GATEWAY=10.0.0.2 # 负载均衡器的网关地址 /sbin/arping -I em1 -c 5 -s $VIP $GATEWAY &>/dev/null chmod 755 /etc/keepalived/clean_arp.sh
3.slave上的keepalived配置
global_defs {
notification_email {
174646513@qq.com
}
notification_email_from 17461651@qq.com
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id lb01
}
vrrp_script chk_http_port {
script "/service/scripts/chk_nginx.sh"
interval 2
weight -5
fall 2
rise 1
}
vrrp_instance VI_1 {
state BACKUP
interface eth0
mcast_src_ip 10.0.0.5
virtual_router_id 51
priority 99
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.3
}
track_script {
chk_http_port
}
notify_master "/etc/keepalived/clean_arp.sh 10.0.0.3"
}
vrrp_instance VI_2 {
state MASTER
interface eth0
mcast_src_ip 10.0.0.6
virtual_router_id 52
priority 101
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.0.0.4
}
track_script {
chk_http_port
}
notify_master "/etc/keepalived/clean_arp.sh 10.0.0.4"
}
在测试机10.0.0.51上修改/etc/hosts文件,将三个域名分别指向10.0.0.3、10.0.0.4,测试--正常.
双主模式总结:谁是MASTER,谁的优先级就高,谁的虚拟IP就生效.
双主模式参考博客:https://www.cnblogs.com/kevingrace/p/6146031.html
标签：back virt mil notify style def val http rac
原文地址：https://www.cnblogs.com/fawaikuangtu123/p/10167939.html
